删除未使用的启动脚本

启动脑晴测.ps1 是早期简化版，没有任何脚本调用它。
一键启动脑晴测.bat 实际调用的是 launch-brain-h5.ps1，功能更全（含局域网 IP 显示）。

启动脑晴测.ps1

@@ -1,44 +0,0 @@
-$ErrorActionPreference = "Stop"
-
-$Project = Join-Path $PSScriptRoot "brain-h5"
-$Launcher = Join-Path $Project "scripts\start-local.cmd"
-$Url = "http://127.0.0.1:4173/"
-
-if (-not (Test-Path -LiteralPath $Project)) {
-  throw "Project folder not found: $Project"
-}
-
-if (-not (Test-Path -LiteralPath $Launcher)) {
-  throw "Launcher not found: $Launcher"
-}
-
-Write-Host "Starting Brain H5..."
-Write-Host "Project: $Project"
-Write-Host "Url: $Url"
-
-$server = [System.Diagnostics.ProcessStartInfo]::new()
-$server.FileName = "cmd.exe"
-$server.Arguments = "/k `"$Launcher`""
-$server.WorkingDirectory = $Project
-$server.WindowStyle = [System.Diagnostics.ProcessWindowStyle]::Minimized
-$server.UseShellExecute = $true
-[System.Diagnostics.Process]::Start($server) | Out-Null
-
-$deadline = (Get-Date).AddMinutes(6)
-do {
-  try {
-    $response = Invoke-WebRequest -UseBasicParsing -Uri $Url -TimeoutSec 2
-    if ($response.StatusCode -eq 200) {
-      Write-Host "Brain H5 is ready. Opening browser..."
-      Start-Process $Url
-      exit 0
-    }
-  } catch {
-    Start-Sleep -Seconds 1
-  }
-} while ((Get-Date) -lt $deadline)
-
-Write-Host ""
-Write-Host "Startup timed out. Check the minimized server window for errors."
-Write-Host "You can also open this URL after the server is ready: $Url"
-exit 1